Robert ord campbell



(No Model.)

R. 0. CAMPBELL. BAG FILLER.

Patented Oct. 12,1897

UNITED, STATES.

PATENT OFFICE.

ROBERT ORD CAMPBELL, OF VICTORIA, CANADA.

BAG-FILLER.

SPECIFICATION forming part of Letters Patent No. 591,381, dated October12, 1897. Application filed November 12, 1896. Serial No. 611,836. (Nomodel.) Patented in Canada May 18, 1896, No. 52,300.

To all whom it may concern.-

Be it known that 1, ROBERT RD CAMP- BELL, of the town of Victoria,Province of British Columbia, in the Dominion of Canada, have inventedcertain new and useful Improvements in Bag-Fillers, (patented in .CanadaMay 18, 1896, No. 52,300,) of which the following is a specification.

My invention relates to improvements in bag-fillers; and the object ofthe invention is to provide a simply-operated form of mechanism wherebythe bags or sacks may be adj usted and held in position, so that anydesired measured quantity may be placedin them automatically, and alsoto provide for their ready removal; and it consists, essentially, of avertically-moving table designed to hold the bag, feeding-tube, and thecooperating mechanism used in connection therewith, as hereinafter moreparticularly explained. V

Figure 1 is a perspective view of my machine"with parts broken away toexhibit the construction. Fig. 2 is a vertical section of the machine.

In the drawings like letters of reference indicate corresponding partsin each figure.

A A are two pairs of parallel upright posts, which form the main frameof the machine and are suitably supported upon bed-pieces D. The postsAA extend from the bed-pieces up to the ceiling and are midway supportedby the cross-piece B.

O is a bar sliding between the uprights A A. To this bar is suitablyfastened one end of the straps or belts G the other ends of which arefastened to the shaft V.

J is a support for the main driving-shaft.

E is a horizontal table which rises and falls between the guide-posts AA and is held in position by counterbalancin g weights F, which areconnected to the table E by sprocket-chains e .e, passing oversprocketwheels d d, journaled on the shaft 0, which issuitably'journaled on the side'of the machine at O O.

G is a pulley journaled on the shaft 0. Around the pulley G is wound asteel band g, one end of which is suitably fastened to the frame of themachine at h. Attached to the other end is a weight I. The

pulley G thus arranged acts asa brake.

Attached to the weight I isa rope H, which W is the tube, leading fromthe hopper or other suitable source of supply into the guidebox A Lisatube sliding within the tube NV, which has a longitudinal opening L. s

w is a cut-off entering tube L horizontally through the opening L,-andis connected by a rcd rig to the lever K; which is fulcrumed at a.

The'tube L regulates the quantity of material used at a time by beingplaced higher or lower, as the case may be, in the tube W, and is heldin position by the set-screw l.

T is a cut-off entering the tube \V at its lower end, and is connectedto the lever K by the rod 1.. i

T is a rod journaled in bearings on crossbar B and sliding bar 0, and onthe end of this rod isfastened a packing-plunger U.

V is the drive-pulley, journaled on the .shaft V, which is suitablyjournaled at V V and V M is a clutch which is operated by the lever M,which is fulcrumed at m. V

C is a rope fastened to the top of the rod T and passing over thepulleys c a. At the end of this rope is suspended the weight 0 in anyother suitable manner, into the tube 100 or cylinder TV. The cut-off wis then opened, and this allows the material to drop downto the cut-oitT, which is closed. The cut-01f T is then opened and the material fallsinto the bag.

At each discharge into the bag the clutch M is thrown into gear by thelever M, and the packing-plunger U is pulled down by the straps or beltsC winding on the enlarged part of the shaft V, and packs the materialinto the bag, also forcing the table E down to allow the bag to be takenoff.

At the same time the sliding bar C is pulled down the roller 0' presseson the rope Q, and thereby pulls the clutch M out of gear. This allowsthe weight C to descend and pull the plunger U back into position. W'henthe full bag is taken off, another is placed in position to be filled,and thetableE is raised into position again by taking off the brake G,by pulling on the rope H, and thereby raising the weight I. This loosensthe coil of steel wound around the pulley G. This allows the weights Fto descend and raise the table.

It will thus be seen that I provide a very economical andeasily-operated machine, and it requires a minimum amount of power torun it.

It will also be seen that the bag is easily adjusted, held in anydesired position, the material so measured that waste is prevented, andthe thorough packing of such material is also provided.

That I claim is- 1. In a bag-filler in combination the table, thefeeding-tube, a cut-off permanently located therein, an adjustable tubefitted within the feed-tube intermediately of the length thereof andsupported wholly thereby, and a second cut-off carried by saidadjustable tube, substantially as described.

2. In a bag-filler the combination with the vertically adjustable tablesupported between suitable upright posts and brake for holding same inany desired position of the feeding-tube containing an adjustable innertube and the upper and lower cut-otfs extending into the tube andoperated by a lever the lower end of which is convenient to theattendant an intermediate enlargement of the tube, and a plungerdesigned to extend over the lower portion of the tube, a supportingrodfor such plunger held in suitable bearings and supported by acounterbalancing-weight, belts connected to a sliding bar and wound uponthe counter-shaft of the machine, a suitable clutch on the maindriving-shaft a handlever pivoted in the frame and connected by a ropeQ, extending across the machine as indicated, and a roller on thesliding bar C, designed to engage with the horizontal portion of therope Q, as and for the purpose specified.

' ROBERT 0RD CAMPBELL.

\Vitnesses:

ANDREW CALDERWooD, ARTHUR LEE.

